import Vue from 'vue'
import VueRouter from 'vue-router'
// 引入Login组件
import Login from '../components/Login.vue'
//引入Home组件
import Home from '../components/Home.vue'
//引入Welcome组件
import Welcome from '../components/Welcome.vue'
import UserList from '../components/admin/UserList.vue'
import RightsList from '../components/admin/RightList.vue'
import SportList from '../components/admin/SportList.vue'
import GoodsList from '../components/admin/GoodsList.vue'
import IntroductionList from '../components/sport/IntroductionList.vue'
import CaloriesList from '../components/sport/CaloriesList.vue'
import FoodList from '../components/sport/FoodList.vue'

Vue.use(VueRouter)

const routes = [
    {
        path: "/",
        redirect: "/login"
    },
    {
        path: "/login",
        component: Login
    },
    {
        path: "/home",
        component: Home,
        redirect: "/welcome",
        children: [
            {path: "/welcome", component: Welcome,},
            {path: "/user", component: UserList,},
            {path: "/rights", component: RightsList,},
            {path: "/sport", component: SportList,},
            {path: "/goods", component: GoodsList,},
            {path: "/introduction", component: IntroductionList,},
            {path: "/calories", component: CaloriesList,},
            {path: "/food", component: FoodList,},
        ],
    },
]

const router = new VueRouter({
    routes
})
//挂载路由导航守卫
router.beforeEach((to, from, next) => {
    //to 将要访问
    //from 从哪访问
    //next 接着做什么  next(url) 重定向到url上
    if (to.path == '/login') return next();
    //获取user
    const userFlag = window.sessionStorage.getItem("user");//取出当前用户
    if (!userFlag) return next("/login");//无值 返回登录页
    next();//符合要求
})

export default router//暴露出去
